The Japanese species of the genus Gracilentulus (Protura: Acerentomidae) Author Nakamura, Osami text Zootaxa 2021 2021-06-24 4991 2 271 294 journal article 5535 10.11646/zootaxa.4991.2.3 0eff1796-ad42-48d3-b0da-b0d02c554f09 1175-5326 5030484 943B6E49-37EB-40BE-B0EE-39D87CEEF7BA

TABLE 3. Body chaetotaxy of Gracilentulus europaeus Szeptycki from Hokkaido, Japan

		Larva I		Larva II		Maturus junior		Imago
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		Formula	Primary setae	Formula	Secondary setae	Formula	Tertiary setae	Formula	Complementary setae
(Dorsal)
Thorax	I	4	1, 2	4		4		4
	II	4	A2, M	6	A4	6		6
		?	P1, 2, 3, 4,?	14	P1a, 5, 5a	16	P2a	16
	III	4	A2, M	6	A4	6		6
		?	P1, 2,?	14	P1a, 3, 4, 5, 5a	16	P2a	16
Abdomen	I	0		0		6	A1, 2, 5	6
		?	P1, 2,?	10	P2a, 3, 5	10		10
	II–VI	0		0		6	A1, 2, 5	8	A4
		10	P1, 2, 3, 4, 5	12	P2a	14	P4a	14
	VII	0		0		5(6)	(A1, 2), 4, 5	7(8)	(A1, 2)
		10	P1, 2, 3, 4, 5	14	P2a, 4a	16	P1a	16
	VIII	0-6 6	M2, 3, 4, P2, 3, 5	2-6 8	A3 P4	6-7 8	A1, 5, Mc	6-8 8	-Mc, +M1
	IX			8	1, 2, 4, 5	12	3, 3a	14	4a
	X					8	1, 2, 4, 5	12	3, 3a
	XI					6	1, 2, 3	6
Telson		9	c, 1, 2, 3, 4	9		9		9
(Ventral)
Thorax	I	2-2 4	A1, M1 P1, 2	2-2 4		4-4 6	A2, M2 P3	4-4 6
	II	3-2	Ac, 3, M	5-2	A2	5-2		5-2
		2	P2	2		4	P3	4
	III	?		5-2	Ac, 2, 3	5-2		7-2	A4
		?		2	P2	4	P3	4
Abdomen	I	??		3 2	Ac, 2 P1	3 2		3 2
		Formula	Primary setae	Formula	Secondary setae	Formula	Tertiary setae	Formula	Complementary setae
	II–III	0		1	Ac	3	A2	3
		3	Pc, 2	3	Pc, 2	5	P1a	5
	IV–VII	1 4	Ac P2, 3	1 6	Ac P1, 2, 3	3 8	A2 P1a	3 8
	VIII	2 0	2	4 0	1	4 0		4 0
	IX			4	1, 2	4		4
	X					4	1, 2	4
	XI					2	2	6	1, 3
Telson		8	a, 1, 2, 3	6	-a	6		6